Homo erectus is who we are! We are designed to be upright, erect but we now spend much of our time sitting, and sitting poorly.

Esther Gokhale in the 6 minute Ted X talk below, speaks of the importance of tilting your pelvis forward (tilting your bottom out) to allow the spine to sit upright without slumping.

A good upright sitting posture is easy if you put your knees lower than your hips.

A good upright sitting posture is easy if you put your knees lower than your hips.

Some office chairs can be adjusted so that the seat platform can be made to slope forward.

Alternatively, a cushion or wedge under your bottom will achieve the same result as will sitting towards the front of your chair.

experiment to find what best suits your work and leisure.